Home / 20,974.63-31,476.51-13,560.70

Finding the Fourth Proportional to 20,974.63, 31,476.51 and 13,560.70

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Solution

The fourth proportional to 20,974.63, 31,476.51 and 13,560.70 is: 20,350.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,974.63 : 31,476.51 = 13,560.70 : x
  2. Step 2: Convert to fraction form
    20,974.63/31,476.51 = 13,560.70/x
  3. Step 3: Cross multiply
    20,974.63x = 31,476.51 × 13,560.70
  4. Step 4: Simplify right side
    20,974.63x = 426,843,351.77
  5. Step 5: Solve for x
    x = 426,843,351.77/20,974.63
  6. Step 6: Final answer
    x = 20,350.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.